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Cogito

Pre-K Math · Chapter 3 · Lesson 3

Practice Worksheet

Rectangles

Like a square, but stretched.

10 problems · about 6 minutes · PK.G.1

NameDate

Figure — use these to answer the problems

Turn the rectangle. Count the sides.

Rectangle

Straight sides

4

Corners

4

Turn it0

Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

5 problems

From “Triangles”
How many corners does a triangle have?
Answer
From “Circles and Squares”
How many corners does a square have?
Answer
From “Counting a Jumble”
How many? ●●●●●●●●
Answer
From “Zero Means None”
Nothing on the table. How many?
Answer
From “One More”
One more than 7?
Answer

Warm Up

Straightforward practice. Get the method working first.

2 problems

How many sides does a rectangle have?
Answer
How many corners does a rectangle have?
Answer

Build It Up

The same ideas with more to keep track of.

1 problem

8
Is a door a rectangle?
- Yes.
- No.

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

2 problems

How many long sides does a rectangle have?
Answer
The Book
How many sides does a rectangle have?
Answer